package com.atguigu.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * 豪猪服务层
 *
 * @author lhn
 * @date 2022/04/16 20:21
 * @since 1.0.0
 **/
@Service
public class PaymentService {

    public String payment_ok(Integer id) {
        return "线程池： " + Thread.currentThread().getName() + "payment_ok,id" + id;
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeoutHandler",commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "3000")
    })
    public String payment_timout(Integer id) {
        int timeNumber = 5;
        int i = 0 / 0;
        //try {
        //    TimeUnit.SECONDS.sleep(timeNumber);
        //} catch (InterruptedException e) {
        //    e.printStackTrace();
        //}
        return "线程池： " + Thread.currentThread().getName() + "payment_timout,id" + id + "O(∩_∩)O哈哈~\t" + "超时：" + timeNumber;
    }

    public String paymentInfo_TimeoutHandler(Integer id) {
        return "线程池： " + Thread.currentThread().getName() + "服务器繁忙，请稍后再试！！！,id" + id + "(灬ꈍ ꈍ灬)";
    }

    //=====服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),// 是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),// 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"), // 时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),// 失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id)
    {
        if(id < 0)
        {
            throw new RuntimeException("******id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID();

        return Thread.currentThread().getName()+"\t"+"调用成功，流水号: " + serialNumber;
    }
    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id)
    {
        return "id 不能负数，请稍后再试，/(ㄒoㄒ)/~~   id: " +id;
    }
}